Blow, Flow, Crow, Snow, Slow, Stow.
a 6 letter word ending with a w is borrow.
jigsaw The 6 letter word ending with w is hollow, sorrow, pillow, etc.
widow
endow
widow
STEW, BREW and CREW immediately come to mind.
throw, below, shrew
Waltz.
wheat
willows
escrow
shallow shallow